JP4147190B2 - β−ケトエステル化合物の製造方法 - Google Patents
β−ケトエステル化合物の製造方法 Download PDFInfo
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims description 27
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims description 26
- 229910052751 metal Inorganic materials 0.000 claims description 24
- 239000002184 metal Substances 0.000 claims description 24
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 23
- 229910052725 zinc Inorganic materials 0.000 claims description 21
- 239000011701 zinc Substances 0.000 claims description 21
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 18
- 239000000243 solution Substances 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- 125000000217 alkyl group Chemical group 0.000 claims description 10
- 150000007524 organic acids Chemical class 0.000 claims description 9
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 9
- 239000011260 aqueous acid Substances 0.000 claims description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 5
- -1 nitrile compound Chemical class 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 229910004013 NO 2 Inorganic materials 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 238000005580 one pot reaction Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 125000005843 halogen group Chemical group 0.000 claims description 3
- 239000012046 mixed solvent Substances 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 2
- 229910052794 bromium Inorganic materials 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 238000006460 hydrolysis reaction Methods 0.000 claims description 2
- 229910052740 iodine Inorganic materials 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 239000012265 solid product Substances 0.000 claims description 2
- 125000004417 unsaturated alkyl group Chemical group 0.000 claims 1
- MYSWGUAQZAJSOK-UHFFFAOYSA-N ciprofloxacin Chemical compound C12=CC(N3CCNCC3)=C(F)C=C2C(=O)C(C(=O)O)=CN1C1CC1 MYSWGUAQZAJSOK-UHFFFAOYSA-N 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000003786 synthesis reaction Methods 0.000 abstract description 4
- GSDSWSVVBLHKDQ-JTQLQIEISA-N Levofloxacin Chemical compound C([C@@H](N1C2=C(C(C(C(O)=O)=C1)=O)C=C1F)C)OC2=C1N1CCN(C)CC1 GSDSWSVVBLHKDQ-JTQLQIEISA-N 0.000 abstract description 3
- 239000003242 anti bacterial agent Substances 0.000 abstract description 3
- 229940088710 antibiotic agent Drugs 0.000 abstract description 3
- 229960003405 ciprofloxacin Drugs 0.000 abstract description 3
- 229960003376 levofloxacin Drugs 0.000 abstract description 3
- 208000035143 Bacterial infection Diseases 0.000 abstract description 2
- 241001465754 Metazoa Species 0.000 abstract description 2
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 2
- 208000022362 bacterial infectious disease Diseases 0.000 abstract description 2
- 239000003814 drug Substances 0.000 abstract description 2
- ZRCVYEYHRGVLOC-HYARGMPZSA-N gemifloxacin Chemical compound C1C(CN)C(=N/OC)/CN1C(C(=C1)F)=NC2=C1C(=O)C(C(O)=O)=CN2C1CC1 ZRCVYEYHRGVLOC-HYARGMPZSA-N 0.000 abstract description 2
- 229960003170 gemifloxacin Drugs 0.000 abstract description 2
- 229960000497 trovafloxacin Drugs 0.000 abstract description 2
- WVPSKSLAZQPAKQ-CDMJZVDBSA-N trovafloxacin Chemical compound C([C@H]1[C@@H]([C@H]1C1)N)N1C(C(=CC=1C(=O)C(C(O)=O)=C2)F)=NC=1N2C1=CC=C(F)C=C1F WVPSKSLAZQPAKQ-CDMJZVDBSA-N 0.000 abstract description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 abstract 4
- 230000003389 potentiating effect Effects 0.000 abstract 1
- 229940124597 therapeutic agent Drugs 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 15
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- 238000010992 reflux Methods 0.000 description 7
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- PQJJJMRNHATNKG-UHFFFAOYSA-N ethyl bromoacetate Chemical compound CCOC(=O)CBr PQJJJMRNHATNKG-UHFFFAOYSA-N 0.000 description 4
- 239000000543 intermediate Substances 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 125000002587 enol group Chemical group 0.000 description 3
- 125000000468 ketone group Chemical group 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- DFVYOEWFOJYXQS-UHFFFAOYSA-N CC[K].OC(=O)CC(O)=O Chemical compound CC[K].OC(=O)CC(O)=O DFVYOEWFOJYXQS-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- 244000309464 bull Species 0.000 description 2
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 description 2
- 239000003480 eluent Substances 0.000 description 2
- IEUHWNLWVMLHHC-UHFFFAOYSA-N ethyl 3-(2,6-dichloro-5-fluoropyridin-3-yl)-3-oxopropanoate Chemical compound CCOC(=O)CC(=O)C1=CC(F)=C(Cl)N=C1Cl IEUHWNLWVMLHHC-UHFFFAOYSA-N 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 229940098779 methanesulfonic acid Drugs 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000010898 silica gel chromatography Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 2
- 150000003751 zinc Chemical class 0.000 description 2
- LTMRRSWNXVJMBA-UHFFFAOYSA-L 2,2-diethylpropanedioate Chemical compound CCC(CC)(C([O-])=O)C([O-])=O LTMRRSWNXVJMBA-UHFFFAOYSA-L 0.000 description 1
- DLKNOGQOOZFICZ-UHFFFAOYSA-N 2,4,5-trifluorobenzonitrile Chemical compound FC1=CC(F)=C(C#N)C=C1F DLKNOGQOOZFICZ-UHFFFAOYSA-N 0.000 description 1
- RVDLHGSZWAELAU-UHFFFAOYSA-N 5-tert-butylthiophene-2-carbonyl chloride Chemical compound CC(C)(C)C1=CC=C(C(Cl)=O)S1 RVDLHGSZWAELAU-UHFFFAOYSA-N 0.000 description 1
- 238000007024 Blaise reaction Methods 0.000 description 1
- KYGZCKSPAKDVKC-UHFFFAOYSA-N Oxolinic acid Chemical compound C1=C2N(CC)C=C(C(O)=O)C(=O)C2=CC2=C1OCO2 KYGZCKSPAKDVKC-UHFFFAOYSA-N 0.000 description 1
- 238000005903 acid hydrolysis reaction Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 150000001263 acyl chlorides Chemical class 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- GMVIQOCPXTZUFJ-UHFFFAOYSA-L dipotassium;2-ethylpropanedioate Chemical compound [K+].[K+].CCC(C([O-])=O)C([O-])=O GMVIQOCPXTZUFJ-UHFFFAOYSA-L 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- OTCJYVJORKMTHX-UHFFFAOYSA-N ethyl 3-oxo-3-(2,4,5-trifluorophenyl)propanoate Chemical compound CCOC(=O)CC(=O)C1=CC(F)=C(F)C=C1F OTCJYVJORKMTHX-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- UKFXDFUAPNAMPJ-UHFFFAOYSA-N ethylmalonic acid Chemical compound CCC(C(O)=O)C(O)=O UKFXDFUAPNAMPJ-UHFFFAOYSA-N 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- NXPHGHWWQRMDIA-UHFFFAOYSA-M magnesium;carbanide;bromide Chemical compound [CH3-].[Mg+2].[Br-] NXPHGHWWQRMDIA-UHFFFAOYSA-M 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000002560 nitrile group Chemical group 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- LISFMEBWQUVKPJ-UHFFFAOYSA-N quinolin-2-ol Chemical compound C1=CC=C2NC(=O)C=CC2=C1 LISFMEBWQUVKPJ-UHFFFAOYSA-N 0.000 description 1
- 239000003306 quinoline derived antiinfective agent Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/61—Halogen atoms or nitro radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
- C07C67/343—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Pyridine Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Cephalosporin Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Description
式中、R1はC1−C4−アルキルまたはベンジルを示し、
X及びYはそれぞれCl、F、またはNO2を示し、及び
QはC−H、C−F、C−NO2、またはNを示す。
前記一般式(1)の化合物から製造されるキノロン系抗生剤は強力な抗菌作用を示すので、ヒトや動物の細菌感染の治療用薬剤として非常に有用に使われている。
反応式1
Rは金属、HまたはR1を示し、及び
HAは酸を意味する。
本発明は、下記一般式(2)のニトリル化合物を溶媒中で亜鉛金属、触媒量の有機酸またはその誘導体の存在下に下記一般式(5)のアルキルα−ハロアセテート化合物と反応させた後、これを酸水溶液存在下で加水分解することを特徴とする、下記一般式(1)の化合物を製造する方法に関する。
式中、R1、X、Y及びQはそれぞれ前記同義であり、
WはBrまたはIを示す。
反応式2
特に、一般式(2)の化合物で、X及びYがそれぞれCl、QがNを示す下記一般式(2a)の化合物を反応し、酸水溶液で加水分解して固体生成物を得た後、簡単な濾過及び洗浄によって下記一般式(1a)の化合物を得ることができる。
カラムクロマトグラフィーのように大量生産に適用するのが難しい精製段階を使用せず、簡単な濾過及び洗浄工程で目的物を精製することができるので、この方法は工業的用途において非常に有利である。このとき、最良の結果は、−5〜10℃の温度範囲で静置し、低温度(−5〜10℃)エタノールまたはエタノールと水の混合溶媒(7:3〜4:1混合物,v/v)を使用してろ過ケーキを洗浄した後、生成物を濾過することから得られる。
エチル 3−(2,6−ジクロロ−5−フルオロ−3−ピリジル)−3−オキソプロパノエートの製造
エノール形態 (80%): 12.55 (s, 1H), 7.82 (d, J=7.6Hz, 1H), 5.81 (s, 1H), 4.27 (q, J=7.2Hz, 2H), 1.33 (t, J=7.2Hz, 3H)
ケト形態 (20%): 7.82 (d, J=7.6Hz, 1H), 4.18 (q, J=7.2Hz, 2H), 4.08 (s, 2H), 1.24 (t, J=7.2Hz, 3H)
質量 (APCI, m/z): 278 (M-H, 43), 264 (38), 232 (24), 214 (100)
エチル 3−(2,6−ジクロロ−5−フルオロ−3−ピリジル)−3−オキソプロパノエートの製造
活性化された亜鉛金属3.4gとテトラヒドロフラン15mLを反応容器に導入して混合物を還流攪拌した。混合物にブロモ酢酸エチルを数滴滴下し、混合物を1時間攪拌した。2,6−ジクロロ−5−フルオロ−3−ピリジルカルボニトリル1gとブロモ酢酸エチル3.5gを1時間かけてゆっくり滴下した後、混合物を30分間さらに還流攪拌して常温まで冷却した。反応混合物を0〜10℃に冷却し、3N塩酸水溶液(30mL)を加えて、混合物をゆっくり常温まで暖めた。反応溶液を2時間攪拌した。TLCで反応完結を確認した後、テトラヒドロフランを減圧蒸留下で除去した。残留物を酢酸エチルで抽出し、シリカゲルカラムクロマトグラフィー(溶離液:ジエチルエーテル/n−ヘキサン=1/10,v/v)で精製して表題化合物を88%(1.3g)の収率で得た。
エノール形態 (90%): 12.55 (s, 1H), 7.82 (d, J= 7.6Hz, 1H), 5.81 (s, 1H), 4.27 (q, J=7.2Hz, 2H), 1.33 (t, J= 7.2Hz, 3H)
ケト形態 (10%): 7.82 (d, J= 7.6Hz, 1H), 4.18 (q, J=7.2Hz, 2H), 4.08 (s, 2H), 1.24 (t, J= 7.2Hz, 3H)
質量(APCI): 278 (M-H, 43), 264 (38), 232 (24), 214 (100)
エチル2,4,5−トリフルオロベンゾイルアセテートの製造
エノール形態 (75%): 12.15 (s, 1H), 7.47 (q, J=7.8Hz, 1H), 7.04 (q, J=7.8Hz, 1H), 5.91 (s, 1H), 4.26 (q, J=7.2Hz, 2H), 1.32 (t, J=7.2Hz, 3H)
ケト形態 (25%): 7.66 (q, J=7.8Hz, 1H), 7.04 (q, J= 7.8Hz, 1H), 4.16 (q, J=7.2Hz, 2H), 4.10 (s, 2H), 1.21 (t, J=7.2Hz, 3H)
質量 (FAB, m/z): 247 (M+H)
Claims (16)
- 下記一般式(2)のニトリル化合物を、溶媒中で亜鉛金属、触媒量の有機酸またはその誘導体の存在下に、下記一般式(5)のアルキルα−ハロアセテート化合物と反応させた後、これを酸水溶液存在下に加水分解することを特徴とする下記一般式(1)の化合物を製造する方法:
式中、R1はC1−C4−アルキルまたはベンジルを示し、
X及びYはそれぞれ独立にCl、FまたはNO2を示し、
WはBrまたはIを示し、及び
QはC−H、C−F、C−NO2またはNを示し、
有機酸またはその誘導体は、HCO2H、HCO2TMS,RCO2H,RSO3H、RCO2TMS,RSO3TMSおよび(RSO3)2NHから選択される1以上のものであり、Rは1〜6の炭素原子を有し、場合によりハロゲンにより置換された飽和または不飽和アルキル、または6〜12の炭素原子を有し、場合によりハロゲンによって置換されたアリールである。) - ワンポット反応(one-pot reaction)として進行する請求項1に記載の方法。
- 溶媒がテトラヒドロフラン、ベンゼン、トルエン及びエーテルよりなる群から選択された1つ以上である請求項1に記載の方法。
- 溶媒がテトラヒドロフランである請求項3に記載の方法。
- 一般式(5)のアルキルα−ハロアセテート化合物で、R1がC1−C4−アルキルである請求項1〜4のいずれかに記載の方法。
- 一般式(5)のアルキルα−ハロアセテート化合物が一般式(2)の化合物に対して等モル〜2.0倍モル量で使われる請求項5に記載の方法。
- 亜鉛金属が一般式(2)の化合物に対して等モル〜2.0倍モル量で使われる請求項1に記載の方法。
- 亜鉛金属がダストまたはパウダー形態である請求項1または7に記載の方法。
- 有機酸またはその誘導体が一般式(2)の化合物に対して0.001〜0.1倍モル量の触媒量で使われる請求項1に記載の方法。
- 酸水溶液が塩酸水溶液または硫酸水溶液である請求項1に記載の方法。
- 酸水溶液が塩酸水溶液である請求項10に記載の方法。
- 酸が一般式(2)の化合物に対して2〜5倍モル量で使われる請求項10に記載の方法。
- 酸水溶液を0〜10℃温度範囲で滴下し、加水分解反応を20〜30℃の温度範囲で遂行する請求項10に記載の方法。
- エタノールまたはエタノールと水の混合溶媒を使用して洗浄を行なう請求項14に記載の方法。
- エタノールと水の混合溶媒で混合比率が7:3〜4:1(v/v)である請求項15に記載の方法。
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PCT/KR2002/001918 WO2003033469A1 (en) | 2001-10-15 | 2002-10-14 | A process for preparing beta-ketoester compound |
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JP4147190B2 true JP4147190B2 (ja) | 2008-09-10 |
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US (1) | US6987199B2 (ja) |
EP (1) | EP1436263B1 (ja) |
JP (1) | JP4147190B2 (ja) |
KR (1) | KR100589966B1 (ja) |
CN (1) | CN1308309C (ja) |
AT (1) | ATE373641T1 (ja) |
DE (1) | DE60222574T2 (ja) |
DK (1) | DK1436263T3 (ja) |
ES (1) | ES2294179T3 (ja) |
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CN101263105B (zh) * | 2005-09-16 | 2012-07-04 | 株式会社Lg生命科学 | 制备β-酮酸酯化合物的方法 |
KR100968576B1 (ko) * | 2008-06-10 | 2010-07-08 | 이화여자대학교 산학협력단 | 2-아실-3-아미노-2-알케노에이트의 제조방법 |
CN101774967B (zh) * | 2010-01-27 | 2011-07-27 | 常州寅盛药业有限公司 | 一种制备2,6-二氯-5-氟烟酰乙酸乙酯的方法 |
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DE3508816A1 (de) * | 1985-01-10 | 1986-07-10 | Bayer Ag, 5090 Leverkusen | 6,7-disubstituierte 1-cyclopropyl-1,4-dihydro-4-oxo-1,8-naphtyridin-3-carbonsaeuren |
EP0333020A3 (en) * | 1988-03-18 | 1991-03-20 | Abbott Laboratories | Process for the preparation of substituted pyridines |
EP0449445A3 (en) * | 1990-03-27 | 1993-08-25 | Pfizer Inc. | Preparation of beta-ketoesters useful in preparing quinolone antibiotics |
US5204478A (en) * | 1992-08-20 | 1993-04-20 | Warner-Lambert Company | Process for the synthesis of 2,6-dichloro-5-fluoronicotinic acid and 2,6-dichloro-5-fluoronicotinoyl chloride |
KR100372563B1 (ko) | 1996-12-16 | 2003-11-20 | 주식회사 엘지생명과학 | 퀴놀론계항생제중간체인베타-케토에스테르유도체의제조방법 |
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JP2005510486A (ja) | 2005-04-21 |
EP1436263B1 (en) | 2007-09-19 |
CN1571771A (zh) | 2005-01-26 |
US20040249163A1 (en) | 2004-12-09 |
ATE373641T1 (de) | 2007-10-15 |
US6987199B2 (en) | 2006-01-17 |
DE60222574D1 (de) | 2007-10-31 |
DE60222574T2 (de) | 2008-01-31 |
EP1436263A4 (en) | 2005-11-02 |
CN1308309C (zh) | 2007-04-04 |
EP1436263A1 (en) | 2004-07-14 |
WO2003033469A1 (en) | 2003-04-24 |
PT1436263E (pt) | 2007-12-17 |
KR100589966B1 (ko) | 2006-06-15 |
ES2294179T3 (es) | 2008-04-01 |
KR20030031433A (ko) | 2003-04-21 |
DK1436263T3 (da) | 2007-11-05 |
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